Product Details

9859139001
M39-4.0 Nylon Insert Lock Nut, Class 10 Zinc.

• DIN 985, ISO 10511, CSN 021492, UNI 7474

A nylon insert lock nut, or nyloc, is a polymer-insert lock nut, or nylon insert (elastic) stop nut. It is a common type of locknut comprised of a hex nut with a fixed nylon-filled collar at its back end. Nyloc nuts are designed to be used with machine screws and bolts and can be reused.